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A blue dwarf star with an unusual spectrum, Achernar has a magnitude of +0.5, making
it the brightest of the stars of Eridanus, and the ninth brightest in the entire sky.
Bright Achernar lies at the extreme southern tip of the star-river Eridanus, less than a degree from its southernmost border with neighbouring Hydrus.
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Imagery provided by Aladin sky atlas
Miram Nashira La Superba Mekbuda Koeia KR Muscae Kruger 60 A DO Cephei Polis θ Hydrae TZ Arietis Struve 2398 B Xi Boötis B x Carinae w Carinae ο1 Cygni Petra π Cephei s Velorum A Pincoya Kapteyn's Star Chaophraya Cerberus AU Microscopii AX Microscopii b Velorum 41 Draconis 75 Cygni a Velorum Nosaxa HD 37131 GX Andromedae Guniibuu Groombridge 1618 Gakyid Gliese 887 Gliese 687 Gliese 440 Inquill IL Aquarii k Hydrae Dombay e Aquilae Ebla CS Camelopardalis ε Indi Erakis Felixvarela Thabit ν2 Canis Majoris γ Pavonis ρ Cygni Alfirk Teegarden's Star β Pictoris Proxima Centauri Polaris d Lupi ζ Arae π5 Orionis 15 Orionis ν Persei ι1 Scorpii Ran τ Ceti Adhafera Alchiba θ Circini Almaaz Alnilam BF Orionis Capella Betelgeuse Naos δ Caeli FL Virginis σ Orionis Acubens Sirius B Schedar Mu Aquilae 52 Orionis U Sagittarii ε Reticuli EE Leonis Sharjah 61 Cygni A Arneb Mebsuta HO Librae Unurgunite Hind's Crimson Star Enif ο Capricorni B Antares UV Ceti Hatysa Mira Atria van Maanen's Star Rigel Avior α Centauri A δ Muscae Ross 154 Achird Mirfak Deneb Berehynia WX Ursae Majoris Wolf 498 Wolf 359 Wezen Suhail Sadr Diya η Carinae Tureis Azmidi Sargas χ Cygni
Achernar
Hertzprung-Russell diagram plotting the temperature and luminosity of Achernar (marked by the red circle) relative to other stars.
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